Polymer Scaffold: There are a myriad of polymer materials used for surgery including in the area of cranio-maxillofacial surgery. The most common polymer is poly(lactic acid). PLA such as 70:30 poly(L-lactide-co-D,L-lactide) are made from a amorphous biodegradable copolymer which will ultimately resorb in vivo. The bioceramics and polymer materials are approved by the TGA for this indication.